# Install Slack in Google Antigravity

Source: https://github.com/slackapi/slack-skills-plugin/tree/main/skills
Listing: https://www.antigravityskills.org/skill/slack-skill
Safety review (2026-10-21): Mostly Markdown instructions plus the hosted Slack MCP server (OAuth); only deploy-slack-app ships shell scripts, which send your Slack tokens to Railway or Heroku.

## Rules for the agent
- Before running anything, tell the user what you will download and whether it contains scripts, and ask them to confirm.
- Install into this project (.agents/skills/) unless the user asks for a global install (~/.gemini/config/skills/).
- Do not run other commands from the source repository unless the user asks.

## Steps
1. Clone the source repository

```bash
git clone --depth 1 https://github.com/slackapi/slack-skills-plugin /tmp/slack-skills-plugin
```

   Download Slack's official plugin repository into a temporary folder.
2. Copy the skills into your workspace

```bash
mkdir -p .agents/skills && cp -r /tmp/slack-skills-plugin/skills/* .agents/skills/
```

   Run this from your project root. It copies the nine skill folders (slack-messaging, slack-search, slack-api, slack-cli, slack-docs, create-slack-app, test-slack-app, block-kit, deploy-slack-app) into .agents/skills/. Copy single folders if you only need some; skip deploy-slack-app unless you want the Railway/Heroku scripts.
3. Or install them globally

```bash
mkdir -p ~/.gemini/config/skills && cp -r /tmp/slack-skills-plugin/skills/* ~/.gemini/config/skills/
```

   Use this instead of the workspace copy to make the skills available in every project.
4. Check that Antigravity sees them
   Ask "What skills do you have?" (Antigravity 2.0 app has no /skills command). Antigravity CLI: run /skills; in a session that was already open, run /skills reload first. Look for slack-messaging, block-kit and the others.

Note: The README does not mention Antigravity (it documents Claude Code, Cursor, Codex and `npx skills -a <agent>`). Copying the folders gives you the skills only. Sending or searching Slack messages needs Slack's MCP server (https://mcp.slack.com/mcp, OAuth, workspace admin approval), whose setup the repo documents for Claude Code and Cursor only. Developer skills use the Slack CLI or a Slack bot/user token.

Done when the skill is listed: in the Antigravity 2.0 app ask "What skills do you have?" in a new conversation (the app has no /skills command); in the Antigravity CLI run /skills (run /skills reload first in a session that was already open).